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/*
* Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.oracle.svm.graal.hosted;
import java.lang.management.ThreadMXBean;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import org.graalvm.compiler.api.runtime.GraalRuntime;
import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
import org.graalvm.compiler.nodes.FieldLocationIdentity;
import org.graalvm.nativeimage.Feature.CompilationAccess;
import org.graalvm.nativeimage.c.function.RelocatedPointer;
import com.oracle.graal.pointsto.constraints.UnsupportedFeatureException;
import com.oracle.graal.pointsto.meta.AnalysisField;
import com.oracle.graal.pointsto.meta.AnalysisMetaAccess;
import com.oracle.graal.pointsto.meta.AnalysisMethod;
import com.oracle.graal.pointsto.meta.AnalysisType;
import com.oracle.graal.pointsto.meta.AnalysisUniverse;
import com.oracle.svm.core.SubstrateUtil;
import com.oracle.svm.core.graal.nodes.SubstrateFieldLocationIdentity;
import com.oracle.svm.core.hub.DynamicHub;
import com.oracle.svm.core.meta.ReadableJavaField;
import com.oracle.svm.core.util.HostedStringDeduplication;
import com.oracle.svm.core.util.Replaced;
import com.oracle.svm.core.util.VMError;
import com.oracle.svm.graal.GraalSupport;
import com.oracle.svm.graal.SubstrateGraalRuntime;
import com.oracle.svm.graal.meta.SubstrateConstantFieldProvider;
import com.oracle.svm.graal.meta.SubstrateConstantReflectionProvider;
import com.oracle.svm.graal.meta.SubstrateField;
import com.oracle.svm.graal.meta.SubstrateMetaAccess;
import com.oracle.svm.graal.meta.SubstrateMethod;
import com.oracle.svm.graal.meta.SubstrateSignature;
import com.oracle.svm.graal.meta.SubstrateType;
import com.oracle.svm.hosted.SVMHost;
import com.oracle.svm.hosted.ameta.AnalysisConstantFieldProvider;
import com.oracle.svm.hosted.ameta.AnalysisConstantReflectionProvider;
import com.oracle.svm.hosted.analysis.Inflation;
import com.oracle.svm.hosted.meta.HostedField;
import com.oracle.svm.hosted.meta.HostedMethod;
import com.oracle.svm.hosted.meta.HostedSnippetReflectionProvider;
import com.oracle.svm.hosted.meta.HostedType;
import com.oracle.svm.hosted.meta.HostedUniverse;
import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaField;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaType;
import jdk.vm.ci.hotspot.HotSpotSignature;
import jdk.vm.ci.meta.JavaType;
import jdk.vm.ci.meta.MetaAccessProvider;
import jdk.vm.ci.meta.ResolvedJavaField;
import jdk.vm.ci.meta.ResolvedJavaMethod;
import jdk.vm.ci.meta.ResolvedJavaType;
import jdk.vm.ci.meta.Signature;
/**
* Replaces Graal related objects during analysis in the universe.
*
* It is mainly used to replace the Hosted* meta data with the Substrate* meta data.
*/
public class GraalObjectReplacer implements Function {
private final AnalysisUniverse aUniverse;
private final AnalysisMetaAccess aMetaAccess;
private final HashMap methods = new HashMap<>();
private final HashMap fields = new HashMap<>();
private final HashMap fieldLocationIdentities = new HashMap<>();
private final HashMap types = new HashMap<>();
private final HashMap signatures = new HashMap<>();
private final SubstrateMetaAccess sMetaAccess;
private final SubstrateConstantReflectionProvider sConstantReflectionProvider;
private final SubstrateConstantFieldProvider sConstantFieldProvider;
private SubstrateGraalRuntime sGraalRuntime;
private final HostedStringDeduplication stringTable;
public GraalObjectReplacer(AnalysisUniverse aUniverse, AnalysisMetaAccess aMetaAccess) {
this.aUniverse = aUniverse;
this.aMetaAccess = aMetaAccess;
this.sMetaAccess = new SubstrateMetaAccess();
this.stringTable = HostedStringDeduplication.singleton();
this.sConstantReflectionProvider = new SubstrateConstantReflectionProvider(sMetaAccess);
this.sConstantFieldProvider = new SubstrateConstantFieldProvider(aMetaAccess);
}
public void setGraalRuntime(SubstrateGraalRuntime sGraalRuntime) {
assert this.sGraalRuntime == null;
this.sGraalRuntime = sGraalRuntime;
}
@Override
public Object apply(Object source) {
if (source == null) {
return null;
}
Object dest = source;
if (source instanceof RelocatedPointer) {
return dest;
}
if (source instanceof MetaAccessProvider) {
dest = sMetaAccess;
} else if (source instanceof HotSpotJVMCIRuntime) {
throw VMError.shouldNotReachHere("HotSpotJVMCIRuntime should not appear in the image: " + source);
} else if (source instanceof GraalRuntime) {
dest = sGraalRuntime;
} else if (source instanceof AnalysisConstantReflectionProvider) {
dest = sConstantReflectionProvider;
} else if (source instanceof AnalysisConstantFieldProvider) {
dest = sConstantFieldProvider;
} else if (source instanceof ForeignCallsProvider) {
dest = GraalSupport.getRuntimeConfig().getProviders().getForeignCalls();
} else if (source instanceof HostedSnippetReflectionProvider) {
dest = GraalSupport.getRuntimeConfig().getSnippetReflection();
} else if (shouldBeReplaced(source)) {
/*
* The hash maps must be synchronized, because replace() may be called from
* BigBang.finish(), which is multi-threaded.
*/
synchronized (this) {
if (source instanceof HotSpotResolvedJavaMethod) {
throw new UnsupportedFeatureException(source.toString());
} else if (source instanceof HotSpotResolvedJavaField) {
throw new UnsupportedFeatureException(source.toString());
} else if (source instanceof HotSpotResolvedJavaType) {
throw new UnsupportedFeatureException(source.toString());
} else if (source instanceof HotSpotSignature) {
throw new UnsupportedFeatureException(source.toString());
} else if (source instanceof ResolvedJavaMethod) {
dest = createMethod((ResolvedJavaMethod) source);
} else if (source instanceof ResolvedJavaField) {
dest = createField((ResolvedJavaField) source);
} else if (source instanceof ResolvedJavaType) {
dest = createType((ResolvedJavaType) source);
} else if (source instanceof Signature) {
dest = createSignature((Signature) source);
} else if (source instanceof FieldLocationIdentity) {
dest = fieldLocationIdentities.get(source);
if (dest == null) {
SubstrateField destField = (SubstrateField) apply(((FieldLocationIdentity) source).getField());
dest = new SubstrateFieldLocationIdentity(destField);
fieldLocationIdentities.put((FieldLocationIdentity) source, (FieldLocationIdentity) dest);
}
}
}
}
assert dest != null;
String className = dest.getClass().getName();
assert SubstrateUtil.isBuildingLibgraal() || !className.contains(".hotspot.") || className.contains(".svm.jtt.hotspot.") : "HotSpot object in image " + className;
assert !className.contains(".analysis.meta.") : "Analysis meta object in image " + className;
assert !className.contains(".hosted.meta.") : "Hosted meta object in image " + className;
assert !SubstrateUtil.isBuildingLibgraal() || !className.contains(".svm.hosted.snippets.") : "Hosted snippet object in image " + className;
return dest;
}
private static boolean shouldBeReplaced(Object object) {
if (object instanceof Replaced) {
return false;
}
/*
* Must be in sync with the types checked in replace()
*/
if (object instanceof ResolvedJavaMethod) {
return true;
}
if (object instanceof ResolvedJavaField) {
return true;
}
if (object instanceof ResolvedJavaType) {
return true;
}
if (object instanceof ThreadMXBean) {
return true;
}
if (object instanceof FieldLocationIdentity) {
return true;
}
return false;
}
public SubstrateMethod createMethod(ResolvedJavaMethod original) {
AnalysisMethod aMethod;
if (original instanceof AnalysisMethod) {
aMethod = (AnalysisMethod) original;
} else if (original instanceof HostedMethod) {
aMethod = ((HostedMethod) original).wrapped;
} else {
aMethod = aUniverse.lookup(original);
}
SubstrateMethod sMethod = methods.get(aMethod);
if (sMethod == null) {
assert !(original instanceof HostedMethod) : "too late to create new method";
sMethod = new SubstrateMethod(aMethod, stringTable);
methods.put(aMethod, sMethod);
/*
* The links to other meta objects must be set after adding to the methods to avoid
* infinite recursion.
*/
sMethod.setLinks(createSignature(aMethod.getSignature()), createType(aMethod.getDeclaringClass()));
/*
* Annotations are updated in every analysis iteration, but this is a starting point. It
* also ensures that all types used by annotations are created eagerly.
*/
sMethod.setAnnotationsEncoding(Inflation.encodeAnnotations(aMetaAccess, aMethod.getAnnotations(), null));
}
return sMethod;
}
public SubstrateField createField(ResolvedJavaField original) {
AnalysisField aField;
if (original instanceof AnalysisField) {
aField = (AnalysisField) original;
} else {
aField = ((HostedField) original).wrapped;
}
SubstrateField sField = fields.get(aField);
if (sField == null) {
assert !(original instanceof HostedField) : "too late to create new field";
int modifiers = aField.getModifiers();
if (ReadableJavaField.injectFinalForRuntimeCompilation(aField.wrapped)) {
modifiers = modifiers | Modifier.FINAL;
}
sField = new SubstrateField(aMetaAccess, aField, modifiers, stringTable);
fields.put(aField, sField);
sField.setLinks(createType(aField.getType()), createType(aField.getDeclaringClass()));
/*
* Annotations are updated in every analysis iteration, but this is a starting point. It
* also ensures that all types used by annotations are created eagerly.
*/
sField.setAnnotationsEncoding(Inflation.encodeAnnotations(aMetaAccess, aField.getAnnotations(), null));
}
return sField;
}
public SubstrateField getField(AnalysisField field) {
return fields.get(field);
}
public boolean removeField(AnalysisField field) {
return fields.remove(field) != null;
}
public boolean typeCreated(JavaType original) {
return types.containsKey(toAnalysisType(original));
}
public SubstrateType createType(JavaType original) {
if (original == null) {
return null;
}
AnalysisType aType = toAnalysisType(original);
SubstrateType sType = types.get(aType);
if (sType == null) {
assert !(original instanceof HostedType) : "too late to create new type";
DynamicHub hub = ((SVMHost) aUniverse.hostVM()).dynamicHub(aType);
sType = new SubstrateType(aType.getJavaKind(), hub);
types.put(aType, sType);
hub.setMetaType(sType);
sType.setRawAllInstanceFields(createAllInstanceFields(aType));
createType(aType.getSuperclass());
createType(aType.getComponentType());
for (AnalysisType aInterface : aType.getInterfaces()) {
createType(aInterface);
}
}
return sType;
}
private static AnalysisType toAnalysisType(JavaType original) {
if (original instanceof HostedType) {
return ((HostedType) original).getWrapped();
} else if (original instanceof AnalysisType) {
return (AnalysisType) original;
} else {
throw new InternalError("unexpected type " + original);
}
}
private SubstrateField[] createAllInstanceFields(ResolvedJavaType originalType) {
ResolvedJavaField[] originalFields = originalType.getInstanceFields(true);
SubstrateField[] sFields = new SubstrateField[originalFields.length];
for (int idx = 0; idx < originalFields.length; idx++) {
sFields[idx] = createField(originalFields[idx]);
}
return sFields;
}
private SubstrateSignature createSignature(Signature original) {
SubstrateSignature sSignature = signatures.get(original);
if (sSignature == null) {
sSignature = new SubstrateSignature();
signatures.put(original, sSignature);
SubstrateType[] parameterTypes = new SubstrateType[original.getParameterCount(false)];
for (int index = 0; index < original.getParameterCount(false); index++) {
parameterTypes[index] = createType(original.getParameterType(index, null));
}
/*
* The links to other meta objects must be set after adding to the signatures to avoid
* infinite recursion.
*/
sSignature.setTypes(parameterTypes, createType(original.getReturnType(null)));
}
return sSignature;
}
/**
* Some meta data must be updated during analysis. This is done here.
*/
public boolean updateDataDuringAnalysis(AnalysisMetaAccess metaAccess) {
boolean result = false;
List aMethods = new ArrayList<>();
aMethods.addAll(methods.keySet());
int index = 0;
while (index < aMethods.size()) {
AnalysisMethod aMethod = aMethods.get(index++);
SubstrateMethod sMethod = methods.get(aMethod);
SubstrateMethod[] implementations = new SubstrateMethod[aMethod.getImplementations().length];
int idx = 0;
for (AnalysisMethod impl : aMethod.getImplementations()) {
SubstrateMethod sImpl = methods.get(impl);
if (sImpl == null) {
sImpl = createMethod(impl);
aMethods.add(impl);
result = true;
}
implementations[idx++] = sImpl;
}
if (sMethod.setImplementations(implementations)) {
result = true;
}
}
for (Map.Entry entry : methods.entrySet()) {
if (entry.getValue().setAnnotationsEncoding(Inflation.encodeAnnotations(metaAccess, entry.getKey().getAnnotations(), entry.getValue().getAnnotationsEncoding()))) {
result = true;
}
}
for (Map.Entry entry : fields.entrySet()) {
if (entry.getValue().setAnnotationsEncoding(Inflation.encodeAnnotations(metaAccess, entry.getKey().getAnnotations(), entry.getValue().getAnnotationsEncoding()))) {
result = true;
}
}
return result;
}
/**
* Updates all relevant data from universe building. Object replacement is done during analysis.
* Therefore all substrate VM related data has to be updated after building the substrate
* universe.
*/
@SuppressWarnings("try")
public void updateSubstrateDataAfterCompilation(HostedUniverse hUniverse) {
for (Map.Entry entry : types.entrySet()) {
AnalysisType aType = entry.getKey();
SubstrateType sType = entry.getValue();
if (!hUniverse.contains(aType)) {
continue;
}
HostedType hType = hUniverse.lookup(aType);
DynamicHub uniqueImplementation = null;
if (hType.getUniqueConcreteImplementation() != null) {
uniqueImplementation = hType.getUniqueConcreteImplementation().getHub();
}
sType.setTypeCheckData(hType.getInstanceOfFromTypeID(), hType.getInstanceOfNumTypeIDs(), uniqueImplementation);
if (sType.getInstanceFieldCount() > 1) {
/*
* What we do here is just a reordering of the instance fields array. The fields
* array already contains all the fields, but in the order of the AnalysisType. As
* the UniverseBuilder reorders the fields, we re-construct the fields array in the
* order of the HostedType. The correct order is essential for materialization
* during deoptimization.
*/
sType.setRawAllInstanceFields(createAllInstanceFields(hType));
}
}
for (Map.Entry entry : fields.entrySet()) {
AnalysisField aField = entry.getKey();
SubstrateField sField = entry.getValue();
HostedField hField = hUniverse.lookup(aField);
sField.setSubstrateData(hField.getLocation(), hField.isAccessed(), hField.isWritten(), hField.getConstantValue());
}
}
public void updateSubstrateDataAfterHeapLayout(HostedUniverse hUniverse) {
for (Map.Entry entry : methods.entrySet()) {
AnalysisMethod aMethod = entry.getKey();
SubstrateMethod sMethod = entry.getValue();
HostedMethod hMethod = hUniverse.lookup(aMethod);
int vTableIndex = (hMethod.hasVTableIndex() ? hMethod.getVTableIndex() : -1);
/*
* We access the offset of methods in the image code section here. Therefore, this code
* can only run after the heap and code cache layout was done.
*/
sMethod.setSubstrateData(vTableIndex, hMethod.isCodeAddressOffsetValid() ? hMethod.getCodeAddressOffset() : 0, hMethod.getDeoptOffsetInImage());
}
}
public void registerImmutableObjects(CompilationAccess access) {
for (SubstrateMethod method : methods.values()) {
access.registerAsImmutable(method);
access.registerAsImmutable(method.getRawImplementations());
access.registerAsImmutable(method.getEncodedLineNumberTable());
}
for (SubstrateField field : fields.values()) {
access.registerAsImmutable(field);
}
for (FieldLocationIdentity fieldLocationIdentity : fieldLocationIdentities.values()) {
access.registerAsImmutable(fieldLocationIdentity);
}
for (SubstrateType type : types.values()) {
access.registerAsImmutable(type);
access.registerAsImmutable(type.getRawAllInstanceFields());
}
for (SubstrateSignature signature : signatures.values()) {
access.registerAsImmutable(signature);
access.registerAsImmutable(signature.getRawParameterTypes());
}
}
}